LeRhone 80
The motor was originally designed in France and named after the Rhone River. This unit was made in the U.S.A. through the Bureau of Aircraft Production by Union Switch & Signal Co. in Pittsburgh, Pa. in 1917. It is classified as a Revolving motor. The crankshaft is attached to the aeroplane and the motor revolves around it with the propeller. It is rated for 80 HP at 1200 R.P.M. There are 9 cylinders of 105 mm bore and 140 mm stroke. Displacement is 667 cubic inches with a compression ratio of 4.8
Side view on the aeroplane
Front
Propeller end
Crankshaft end. Carburetor goes on the end, the plate bolts to the firewall.
Exhaust valve
Intake valve
On the stand ready to disassemble
Prop shaft off
Cam ring
First cylinder off
All cleaned and inspected
Main bearing assembly
Bearings installed with crankcase and crankshaft
Pistons and connecting rods
Connecting rods installed
Cylinder assemblies ready
Pistons and cylinders going together
Cam and follower assembly
Valve linkage parts
Intake tubes
All assembled
Oil pump parts
Assembled oil pump
Throttle parts
Throttle assembly
Finished engine
Ready to install on the aeroplane